Question

The earth exerts a gravitational force of 500 N on Amy. What is Amy’s mass in kg?

Answer 1

Gravitational force of earth is given as weight of object

so here we know that gravitational force on Amy is 500 N

so we will have

`mg = 500 N`

now we will have

`g = 9.8 m/s^2`

now from above equation we will have

`m (9.8 m/s^2) = 500 N`

`m = (500)/(9.8) kg`

`m = 51 kg`

so the mass of the Amy is 51 kg